Automatic conveyer and leer



.w. s. MAYERs. AUTOMATIC CIONVEYER AND LEER.

rammed m1211920'.

APPL1CAT|0N FILED DEC. Il, 19H,

sHr-:ETs-sum 1.

wxNEss WLS. MAYERS.

AUTOMATIC'CONVEYER AND LEER.

l y W////////// ,/////////////////V/////////////a ,/H/H//O//f//f Q llllWITNESSES www# WI S. MAYEHS.' AUTOMATIC CONVEYER AND LEER, APPLICATIONFILED Dic. II, 1917.

Patented Apr. 27, 1920.

5 SHEETS-SHEET 3.

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` I NVQENTOR W. S. MAYERS.

AUTOMATIC CONVEYER AND LEER.

11,338,240. APPLlATlON FILED DEC. Il, 1917.

5 SHE'ETSSHEET 4.`

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Fig. 5

F y UDMA TF g m W. S. MAYERS.

AUTOMATIC CONVEYER AND LEER.

APPLICATION FILED DEC. L1, 1917.

Patented Apr., 27, 1920.

5 SHEETS-SHEET 5.

|NVENTR WITNESSES MJ/alaaf 35 partial sectional View through the feedingWILBUR. s. MAYERS, lor FAIRMONT, WEST vInGINIA.

AUTOMATIC CONVEYER AND LEER.

l. T all whom t may concern: i

Be it known that I, WILBUR S. MAYERs, a citizen of the United States,residing at Fairmont, in the county of Marion and lState of lVestVirginia, have invented new and useful Improvements in AutomaticConveyer `and Leers, of which the following is a specification; .4

My invention relates to annealing fur naces or leers for use kin glassmanufacturing plants for such articles as tumblers,.

packing jars, certain classes of bottles and table-ware. Heretofore the,annealin of these articles has been accomplishe in special furnacesrequiring a considerable amount of fuel for reheatlng the ware andseveral hours for the operation. In my device the ware istaken hot fromthe molds and quickly placed in a closed and heat-insulated chamber thusavoiding thenecessity of reheating, and greatly reducing the time andcost required for annealing. Furthermore there areproduced betterresults than are possible with the leers now in use owing to the factthat the internal stresses producedby the non-uniform shrinkage due tothe rapid coolingof the'ware are avoided.

" In the accompanying drawings,.forming a a part of 'thesespecifications, and in which similar characters of reference indicatelike parts throughout the several views, Figure 1 is apartial side viewof the operating mechanism with the side wall broken away showing avertical longitudinal -sect'ion through the receiving vend of theleerand a chute. Fig. 2 is a horizontal section through .f the`receiving endon the line 2 3 lof Fig.

1. Fig. 3 is an end view of the receiving end broken away in section atthe cullet chl-ite.l Fig. 4 is a vertical section through a part of theoperating mechanism on the line 4-f4 of F'ig. 5. Fig. 5 is a verticalsecl tion 7throughthesame parts on the line 5-5 of Fig. 4. Fig. F6 is ahorizontal secJV tion on the line 6-6 of Fig. 4. Fig. 7 shows thenupperend of the hollow, slide and the rocker-shaft driving arm. Fig 8 is aperspective of a section of the multiple chute and deflectors. Fig 9 isalongitudinal section through; the outer -ends ofthe three jconveyershafts showing the water cooling device. valve in the feedingchute. Fig. 11 is a side 10 is a section through the view of themultiple stop, chute and deflectors. F 12 is a plan of the single stopand Specification of Letters Patent.

made rather .loose Patented Apr. 27, 1920.

Application filed December 11, 1917. Serial No. 206,666.

deflector at theend of the feeding chute. Fig. 13 is a side view of thefeeding chute,

delector and stop and a section of the crossconveyer.` Fig. 14 shows thereverse side of the timer-disk from'that shown in Fig. 5, l'

. and Fig. 15 shows aside view of the entire leer with the feedingmechanism omitted.

rI"he main body of the 'leer consists of the f lsection 2 have lessheat-insulating properties than those of chamber l; those of section 3less thanv section 2 and so on in any number of sections, graduallyincreasing the cooling by radiation as the discharge end of the leer isreached In order to hasten the cooling when desirable the dampers l5, 6,in the vent `pipes 7, 8, are opened more or less, allowing the heatedair to escape directly at these points.

The cooling sections 2, `3 and 4 are just large enough to house theupper run of the main conve er and the largest size v'vare to beannealer so,that the radiating surfaces may be kept at the minimum. 'Ihereceiv-A ing-chamber walls rest directly uponthe floor and the coolingsections are carried by the steel angle bars 9, 9a and the vcolumns 10,11 and 12, 1n pairs.

The bottom member of the conveyer-seal 13, under the rear end wall ofthereceivingchamben extends between the sidel walls. The top of thiscasting just touches the it. In order to prevent' the. cold air fromentering the chamber over the inclosed conf veyer run the top memberofthe conveyerseal 14 is-made to closely t over the main conveyer barsand chains. This casting, ex-

tending between the side 4walls, has a smallF vertical travel and lisloosely fitted under the .rear end wall of the chamber. It 'rides uponthe conveyer and the flange 14X," extending its entire. length, sealsthe air space between it and the end Wall-and retains it in placeagainst the friction with the mainconveyer. Both the castings 13 andv1.4 are fitting and easily removable.

The metal feeding-chute 15 extends tion joins the outer section 15aat-thev joint 16 and the outer section may be extended to any desireddistance to a pointv near the mold from which the ware .is transferredto the chute either by hand or by suitable mechanism. The hinge 1:7 atthe joint provides for the upward lswinging of the outer section but itvisevident that the hinge maybe placed at the bottom or on. the sides sothat the chute section may swing in any direction. Y

At the bottom /of'the receiving-chamber is the combustion-chamber 18separated from the upper part of the chamber by the corrugated cast ironmuffle-plate '19. This plate .fills the entire horizontal area of thereceiving-chamber with the exception'of the recess or throat20 in thefront end wall 21.

' The curved end of the muflle plate terminates a shortydistance4 abovethe bottoni of the throat and close to the bottoln of thecross-conveyer. o .r l

The cap 22 of the receiving-chamber may be swung upward upon the hinge23 to permit/` access to the chamber. The `sand seal 24..'consists of amarginal bead around the bottomof the cap extending downward and into acorresponding groove in the walls f land stationary` cover of thechamber. The

bead does not fillthe groove and the inter- 'l Vening space, is filledwith sand which wall,

makes a heat-tight joint betweenl the members. The eye bolt 25 providesan attachment for lifting the cap 22 on its hinges.

The gas burner -26 is placed under the rear end of the Inutile-platenear the casting 13 and its mixer 27 outside of the rear their,connecting pipe extending through a hole in thev casting. Ignition ofthe gas is made through the hole 27x. purpose of the burner is primarilyto -pro main conveyer by radiation from the muffleplate, as hotglassware is cracked or checked by contact with cold metal. Iktisfurther useful as a vmeans of making up for-heat losses by radiation andto retard the cooling of certain classes of ware. It is apparent that,vthe cross-conveyer will also be heated both by radiation from themuffleplate and by direct contact with the hot p gases, as well as bythe hot ware. T he chute sections 15, 15a, will also beheated by thepassage of a part of the hot gases through them and by direct icontactwith the hot Ware.

The mainj-conveyer consists of a serie-s of thin metal bars 2S attachedto the links of the endless chains 29, 29%, these chains krunning uponsuitable sprocket wheels 30,

T heV close fitting flanges 4.5, 4G and between these 31 in adjacentpairs and tightly keyed to their respective shafts. The ylength of theconveyer bars as well as the width of the leer are determined by thediameter of the articles to be annealed andthe number of pieces in eachcross-row. Fig. 2 shows nine pieces in each cross-rowk but it is evidentthat this number may be increased or diminished without affecting theworking of the mechanism as hereinafter described. It is also evidentthat the length of the maincofnveyer and cooling sections maylbelikewise increased or diminished. The upper or loaded run of theconveyer is supported by the angles 32, 32Il and the lower or empty runupon similar angles 33, 33a. The shaft 34, Fig. 15, passes through' thepair of sprocket wheels 31 and suitable bearings and isI geared to amotorl 35 through the worm 3G, worm-wheel 37 and 85 a train of spurgears. The shaft 3S passes through the walls of the receivingfchai'nberin suitable bearings 39, 39 and through' the sprocket wheels 3f). Thebearings are y partly, and may be entirely, outside of the ,9-0 walls inorder that they may not .be sub- 1 jected to the heat therein. Thesprocket wheels are maintained in continuous motion, vclockwise indirection, with lreference to 'Figs 1 and 15.

- The endsof the shaft 38 as wellas those of the cross-conveyer shafts40, 40a are fitted with water cooling devices shown in Fig.

9. These shafts are end bored to a depth equal to their extension beyondthe inside-100 line of the receiving-chamber walls. Into this bore 41extends the tube 42 whose external diametertas .slightly less than thatof the bore 41. Outside of the tube 42 and within the counterbore at theextreme end of the shaft is the nipple 43 terminating Jn thestuffing-box 44 around the tube 42. On the nipple 43 between thestuffing-box and the end of the shaft are two integral or flanges aseries of holes 43X are drilled through the walls of the nipple. Theseanges are looselyin'closed in the splitl casing- 47. The tube 42 isstationary and is connected to a water supply pipe. The casing 47 isalsov stationary and is connect-ed to a waste pipe. The nipple 43 'istightly threaded into the counterbore at the end of the shaft andtherefore revolves with it. It will be seen that the water entering thetube 42 discharges at its inner end into the bore 4'1, then reversingits direction and .passing through the annular space between the tubeand the bore, it is discharged, through the holes in the nipple 43 intothe casing 457 and finally to the waste pipe.

The cross-Conveyer 4S is similar in design to the main-conveyer exceptthat its width is but slightly greater`v than a single piece of ware andits length between shaft centers l bearings 51, 52 and 51a, 52,respectively,

and, passing throughI the end wall 21, they are keyed tothe sprocketwheels 59, 50a. The conveyer head shaft 40 carries in ad- I dition thetiming-disk 53, the ratchet-wheels 54, 55, 56, all keyed thereto, andthe pawlcarrier 57 loosely fitted. The pawls 54a, 55a, 56a-engagerespectively the ratchets 54, 55, 56, any of which may be independentlythrown out` of engagement; The pin 61 is loose in the connecting-rod 62,arid the l pawls, and tightly fitted in the pawl-carrier. Theoscillatory motion of the pawlcarrier and pawls is continuous with afixed amplitude, and the travel of the pawls at their bearing pointsupon the ratchets is slightly greater than the pitch of the largesttooth and less than the arc subtended by two of the'smallest adjacentteeth. It will be observed thatnthe shaft 40 and sprocket wheel 50 will,at each forward` stroke of the. pawl-carrier,` be\turned through anangle equal to 360" divided bythe number of teeth in the ratchetengaged.The intermittent movements of the cross-conveyer, caused by theengagement of one of the ratchets by its pawl, being slightly greaterthan the greatest diameter of each piece of ware deposited upon it,Contact between the pieces of ware and cohesion between them areavoided.

The drive shaft 63 is journaled. in the bearing 64 and is keyed in thecam 65 and the bevel gear 66. This gear also serves as a crank-disk andthe crank-pin 67 tightly fitted therein, is journaled in the lower endof the connecting-rod 62, the drivenshaft 68 isjournaled in the bearings69, 70 and carriesthe bevel gear 71 and the crankdisk72 bothtightlykeyed.' The crank-pin 7 3 in the crank-disk 72 is-journaled in the lowerend of the connecting-rod 4.

The vertical guide 7 5. 'is integral with the base plate' 76 and baseplate flange 763 andV is planed inside to receive the hollow slide 77.The inside of the hollow slide is planed to receive the inneror solidslide 7 8.` The hollow slide 4has in its upper end the two longitudinalvertical slots 79, 7 9a each haV- ing a length slightly greater` thanthe vertical travel of theV connecting-rod 74, and near the top on oneside is the ,projecting l lug 80 carrying the tightly fitting pin 81,

Fig. 7. In a slot 7 7 X in the top of the hollow slide is pivoted thelatch 82 on the pin 83. This latch has a downward extending arm 821terminating in a lhook and a horizontal arm 82X' which, inits uppermostposition, occupies 'at certain times a notch 84 in thel edge of thevtiming-disk The bent flat spring 82a presses the hook into'the slot inthe slide-7 8 when the arm 82pv is opposite the pin 58a which is screwedtight in the timingdisk. i Vhen, due to the force of gravity, the doghangs in theyertical position as shown in the dotted lines in F ig. 14,its lower face is tangential to the edge of the timing-disk and it isdirectly over the notch 84. It swings freely on its pivot and is limitedin its are of travel by the studs 59, 60. The inner slide 78 is slottedat the top to receive at certainv times thehook 82". The pin 85 passestightly through the inner slide at the top of th'e slot so that itsunder side is engaged at stated intervals with the hook.- This pin alsopasses loosely through the vertical slots 79, 7 9a in the hollow slide77 .and extends into the top of the connectingr-rod 74, loosel fittedthereto.

,he rocker-sha t drivin arm 86 has a U shaped swinging end whlchenvelops theo pin 81 and its other end is keyed to the rocker-shaft 87which! is rotatably supported in the bearings 88, 89. ,The pusherarms90, 91 are keyed to the rocker-shaft and terminate at their upper endsin segmental spur gears 90", 91". Meshing into these gears are therack-rods 92, 93. These rodsextendinto the end wall 21 and are rivetedto the integral' multiple pusher-ban 94. The pusher-bar and rack-rodsrest upon and are guided by the metal frame 95 extending to "the insideof the wall 21 and cut away over the recess 20.' -The top section isrecessed over the rack-rods and has a close sliding fit with these rods-'and the pusher-bar on' the edge flush with `the throat v 20. It isinclinedupward lfrom this edge a sufficient amount to permit the rods tobe raised so that their teeth may clear those of the segmental gears90", 91X. The pusher- I suicient to push the cross-row of glasses offthe conveyer'48 at certain intervals.

. The multiple'chute 96 is preferably made in an integra-l casting4and-is fixed at an incline of'about 16 degreesl from the horizontal. Thedeflectors 97 at the bottom of each chute section consist of shortsegments cut from the walls of round tubes whose internal diameters areslightly greater than that of the pieces of ware which pass over them.The axes of the deflectors are set -at an angle of 4about 45 degreesfrom the horizontal and their bottoms rest'upon the metal bars of themain conveyer 28. The` under side of the;

chute at its upper' end is provided with lugs 9S, 9S and between thesethe lixed rod 99 extends across the leer and forms the upper support ofthe chute. 0n the top surface of the chute the raised guides 100, spacedaccording to the number and width of the pieces of ware, prevent themfrom touching one another whilesliding by gravity down the chute, anddeposit them upon the main conveyer in the proper spacing. ln order thatthe pieces may not touch one another after dropping t`o themain-conveyer the guides 100 have extensions 100x carried to a pointbeyond the deflectors and directly under thestriking edge of themultiple-stop 101 and downward to the level of the bottoms of thedeflectors. yIn case the ware is annealed with the largest diameters upthese guide extensions are carried upward to the stop 101. lVhentumblers of a 'different 'size are to be annealed the integralmultiplechute is lifted out of position and removed and another isinserted in which the raised guides and deflectors are spaced accordingy top of the tumblers T, or other articles,

strike the multiple stop 101 as shown by the dotted lines in'Fig. 1.-The bottoms of the tumblers-are then carried on by their inertia and.clearing the concave end of each section, they lare righted to theirvvertical posiltion and, guided by the deflectors, drop to the mainconveyer so that they will now pass under the stop.

The square or rectangularl metal bar 102 extends yacross the leerchamber and .is firmly embedded in the side walls. The multiple-stop 101is cast/in one piece in the form shown in Fig. 11 and hooks over the bar102 so that its striking edge is in the proper position. This strikingedge is fluted as shown in Fig-2 and is spaced and designed so that itoccupies the correct position with reference to the size of the tumblerand the end ot the multiple-chute. lVhen tum,- blers ofa different sizelare to be annealed the stop is lifted from the bar and another stopinserted in which the striking edge will be in the correct position forthat size of tumbler and the number and spacing of the fluted pocketswill correspond to that slze of ware. The height of the bar 102 will besuch that tumblers of the maximum height, as shown in Fig. 1, will passunder it and when smaller sizes are to be annealed the striking edgewill be lower and farther from the b ar to suitlthe height and diameterl of the various sizes.

The bottom of chute 15terminates in a concave end with a deflector 103similar to those of the multiple-chute 96 above described. The stop 104is placed in the path of the top of the descending tumbler and is hel`din position by the stud 105 which cause the roller 109 to bear firmlyupon the passes through a hole in the side wall and is clamped theretoby means of the flanged nut 106. The hole is larger than the stud sothat vertical and horizontal adjustment of the stop is obtained. Theaction of the tumbler uponstriking the stop is precisely similar to thatdescribed in relation to 'the multiple-chute 96 and stop 101, and'it isobvious that articles with slanting sides, such as tumblers, will takethe positions as above described, either when they descend with theiropen ends up or inverted as Vshown in Figs. 1 and 11. It is also evidentthat any piece of ware which will maintain its stability upon the chute,such as shallow bottles, will take similar positions. The arm 10-1X isattached to the stop 104 and extends downward to a point slightly'abovethe top of the cross-conveyer. rl`he purpose of'this arm is to preventthe tumbler from receding from the deflector 103 when it drops to thecross-conveyer.

The stops 101, 104 are concaved on their striking edges to conform tothe curved surface of the pieces of warein order to lessen any tendencyto distort or fracture the ware by the impact. Freedom from distortion-is furthermore insured by virtue of the well known inherent qualitiesof glass, which, though hot enough to be luminous and pliant andyielding to steady pressure of definite duration, resists sudden blowsand may even be fractured under severe blows.

The hollow shaft 107 is rotatably mounted on the rocker-shaft 87. On oneend of the hollow shaft is the downward extending arm 108 and onftheswinging end of this arm is the roller 109 which engages the wearingsurface of the cam 65. On the other end of the hollow shaft the arm 110extends` upward and terminates in the duplex segmental bevel gear 111.The shafts in the timing valve 112, 112, Fig. 10, are journaled inbearings in the top casing and the bottom of the chute l5 and are keyed.to the segmental bevel gears 113, 113 and end to the arm 110 andtheother end is attached to a lsuitable fixture in the end .wall Thespringhas a tension sufficient to cam 65 and to operate the valve wings 114,114a through the gears 111, 113, 113a when the roller enters and leavesthe depression in the wearing face of the cam.

The bottom of the vertically swinging chute 15t extends between the-side walls of 1 chute 15 to a .point nearthe bearings of shafts 112,112a so that when the swinging section is raised any ware which mayhave`cullet, after which it is lowered to working Vposition and normaloperation 1s resumed.

T he side 15x of the chute 15 extends to a point near the stop 104 forthe purpose of lpreventing the tumbler from bouncing toward the adjacentend of the cross-conveyer after droppingl from the chute.

The culletchute 115 extends from the discharge end of the cross-conveyer48 through the side wall. The small `metal door 116 swings upon 'the'horizontal hinges 117, 117a at the top. and closes by gravity. Thischute is so placed that any ware falling upon it from the end of thecross-conveyer is discharged by gravity through the small door which islifted by the ware passing through it.

Pressed glassware is. commonly taken from the molds at a .temperaturewhich causes the pieces to cohere when brought together and it istherefore essential that contact between two or more pieces be avoidedThis 60ndition is attained by means of the mechan ism above described. 1

The ware is taken from the molds either by hand or by'any form ofautomatic takeout device and is placed upon the upper end of the chute15a. Upon being released it slides downy the chute until it strikesZ thetiming-valve wings 114, 114a while they are in the position shown in thedotted linesin Fig. 10. Atthis instant the depression in thecam 65reaches the roller 109 and actin under the tension ofthe spring 110ilthe ho low shaft makes a' partial turn, thereby shifting the valve 'wirfs to the position .v 4shown in solid line sectlon. .The piece of ware,following the movement of the wings,

passes to the chutev section 15 and slides to the stop 104 where itdrops into position on the cross-conveyer as above described.

The drive shaft 63 makes onel revolution in the interval of timerequired to produce vone piece of ware and may be connectedto anindependent motor through gearing,

properly synchronized,l but where motor driven presses are employed thisshaft is preferably connected to arotating member of the machine andpermanently synchronized through proper gearing. he

movements vof vthe'pawllc'arrier 57, as well,I

as the valve wings, are vmade in cycles corresponding in frequency tothe revolutions of the drive shaft though thelr action 1s notsimultaneous. The cam is set so that the valve wings are in the dottedline position when the ware reaches the bottom of the chute 15a at whichtime the wings are shifted. At a certain subsequent interval'of time,corresponding. to the tlme required for the ware tol reach thecross-conveyer in the' manner above described, a predetermined one ofthe pawls enga es a tooth of its corresponding ratchet an vthe upper runof the cross-conveyer is moved away from the chute through a space equalto the largest p a multiple ofthe number in its companion gear 7l, andtheir ratio' is preferably 2 to 1. At this ratio the crank-disk 72 willrevolve twice foreach piece of'ware produced and the pusher-bar will bethrust forward and withdrawn without\finterfering withA the first pieceof ware on the next cross-row.K The point of one tooth in each of theratch. ets is set in the same radial plane at a point diametricallyopposite the center of lthe notch 84 in the timing-disk 53. Thetimingdisk is set at such a position on its shaft that its notch 84exactly registers with the arm 82x of the latch v82 atthe instant whenthe -cross-conveyer stops, after having received the connecting rod 74,carrying with it the inner `and solid slide 78 and pin 85,.wi11

have reached its highest point of travel.'4 The latch arms will nowbe inthe positions shown in the dotted lines, Fig. 4, and, upon -descending,the pin 85v will engage .the hook 82"., It will be seen that when thisenl agen ment takes place the latch is drawn own and with it'the hollowslide 77, the lfixed pin 81 and the swinging end of the rocker-shaftlarm 86. Upon the upward or return stroke 'the pin 85, lwhich'is nowatthe top of the slots 79, 79, will carry the hollow slide up to itshighest position and ,with it the end of the rocker-shaft arm. When thelatch leaves the notchvin the timing-disk on the downward stroke the dog58 falls to the ver- `tical position, thus closing the notch, and at thetop of the succeeding upward stroke the. arm 822c Yis `'depressed by thedogl and the 2'5 ner above described. If, from anycause,

l hook thrown out of engagement with the pin 85. The hook is likewisethrown out of engagement bythe edge of the timing-disk at every strokeexceptJ the one which occurs while the arm 82x is in the notch. diskrotates to the position shown in Fig. 5 the arm 82x engages the lug 58X,as shown in the dotted' lines in Fig. l-l, thus preventing the dog fromswinging in and prematurely closing the notch,but it is evident that thenotch will be closed at the next 4stroke as above described. The slots79, T9a in the any piece of ware should, in dropping from chute 15, restupon the cross-conveyer out of its proper space the fluted edge of thepusher-bar will correct such displacement,

and in a like manner the fluted edge of the stops 101 and 104 maintainthe proper spacingof the pieces.

he motor 35 is so geared to 'the' mainconveyer drive shaft thatI thehorizontal runs of this conveyer travel a distance equal to the largestdiameter of the pieces of ware lbeing annealed, plus a predeterminedclearance, in the period of time between the actuations of thepusher-bar. In order to vary 4the speed of the niain-conveyer to suit.the rate of production and size of the ware the `motor is provided withany .of the well know speed regulators.

Yhenltumblers or such like which are deposited 1n the outer end of theswinging chute come in contact with the timing-valve` wings 114, 1143Vthey are held at this point for a predetermined interval of time,depending upon the regularity and rate of production, this time intervalcorresponding to the maximum variation in the intervals betweenv thedeposits of the pieces in the chute.

For example,y if the wings are actuated atl intervalsof three secondsand if 'there is a `maximum interval of four seconds between thedeposlts of any ot the tumblers. the- Wings will be set to retard eachtumbler one second, based upon the regular time for such deposits. Thusit will be seen that the tumblers willleave the valve at regulari'ntervals even if deposited in the chute out of time, Within certainlimits. In case that two or more pleces of hot ware are placed in thechute before the valve is actuated through yhen the a complete 'cycletheylwill cohere and can not pass through it. No damage to the wings andother connected mechanism will result however as the inward orfeeding-in stroke of the wings gets its force from the tension of theyspring i103. Should a piece of ware lodge in the position shown insolid line below the wings, as shown in Fig. 10l` it will be forcedoutward in the chute by the wings, positively driven, and the mechanismcannot in this case be damaged. It is obvious that the chute sections15, 15 may. if desirable, be located at the opposite side of thereceiving-chamber, as would be shown if all the `drawings were reversedas they would appear ifvseen in a mirror, without affecting theoperation of the device. The chute 15a may be curved laterally if itsinclination is made slightly steeper to overcome the friction of theware against its sides. As it is essential that the passage of thepieces of ware through the chutes 15. 15a shall take place in a space oftime short enough to prevent their cooling below the point at which theyare. pliant, the receiving end of the leer must be located near enoughto the point of delivery from the mold to render, practicable thetransfer of the ware by gravity through the chutes within the statedlimit of time.

Having thus described my invention I claim:

l. A leer comprising a practically inclosed receiving-chamber, acombustion-chamher, a series of cooling-chambers connected to saidreceiving-chamber, a main-conveyer, a crossconveyer,l a multiple-chutefrom the crossconveyer to the main-conveyer, a chute from the outside tothe cross-conveyer, stops adjacent to and deflectors attached to thelower ends of both chutes, a pusher-bar and means for actuating theconveyers and the pusher. bar, substantially as described.

2. A leer comprising a receiving-chamber, a combustion-chamber, meansfor 'heating the combustion-chamber, a series of coolingchambersconnected to the receiving-chamber, a n'iain-conveyer partially withinthe re; ceivingand cooling-chambers. across-con'- veyer entirely withinthe receiving-chamber. a multiple-chute with deiectors from the.vcross-convcyer to the main-conveyer. a jointed chute with delector fromthe outside to the end of the cross-conveyer, an adjustable stopadjacent to the lower end of the said jointed chute, an interchangeablemultiple-stop adjacent to the lower end of the said multiple-chute, a`multiple-pusher-bar and means for actuating the said conveyers andpusher-bar. I

' 3. A leer comprising interconnected and heat insulated receiving andcoolingr chamwithin said chambers, a cross-conveyer entirely within saldreceiving-chamber, a chute j bers. a 'main-conveyer with its uppersection or inverted positions, concaved defiec ors for transferringarticles of glass in a-pliant state vfrom the molds to thereceivingchamber in a space of time in which said articlesI cannot'coolbelow a point where setting or I partial solidification takes place, aconcaved deflector at the bottom of said chute, a stop with a concavedstriking edge, means for `heating the metal parts-with which saidarticles are inlcontact and said receiving chamber, and means fordepositing the articles upon the main-conveyer for the purpose and inthemanner described.

4f. The combination of a leer comprising 'a heat insulated chamber, asingle inclined chute adapted to conveying stable pieces of ware, suchas tumblers, by gravity, one yby one, from a point Without said chamberto a point withirr it in a space of time short enough to prevent thecooling of the ware beyond certain described limits, a cross-conveyer, apusher-bar with periodical reciprocating motion above land across thecrosse conveyer, an inclined multiple chiite `for receiving the rows ofstable ware pushed off of the cross-conveyer and carrying them bygravity to the main conveyer, guides in said multiple chute forpreventing contact between the pieces of ware, a main conveyer belowsaid multiple chute and means for actuating the parts in saidcombination substantially' as described'.

5. In a leer the combination of an outward projecting closed chute setrin close proximity to a mold from which formed ware is delivered, saidchute being adapted Ato convey each piece of ware deposited upon itsouter end to the receiving-chamber of' said leer within a described timelimit, a concaved deflectorv at the bottom of said chute,a stop with aconcaved striking edge and a downward projecting arm in line with and infixed relation to said chute.

' 6. In a leer of the character described a chute adapted to carrypiecesof ware which are slidable by gravity thereon in either upright orinvertedpo'sitions, a concaved dei flector at ythe bottom of said chute,a stop with a concavedy striking edge and a downward extending armpositioned indefinite .relations to said chute and deflector, as ,andA vfor the purposes described.`

'7. In a leer of the characterdescribed a vrow of chutes in multiple,each unit beingl adapted to carry pieces of w'are wbich'are slidablethereon by gravity in either upright and guides at the bottoms of saidmultiple chutes and stops with concaved striking edges positioned iii-definite relations to said multiple chutes and deflectors, as and foi'thepurposes described.

8. In a leer of the character described the combination ofacross-conveyer, mechanism for actuating said conveyer intermittently inpredetermined periods of time correothers inserted therein, with thespacings between the said notches and guides conforme ing to the desireddiameter `of the pieces of ware produced, plus a given clearance.

9. In a leer of the character described, the combination of amuflle-plate below the return or lower run of an endless conveyer and inheating relation thereto,A a combustionchamber and a source of heatbelow said mufile plate, a heat insulated receiving chamber above theupper run of the receiving end ofthe conveyer, a passage for hot gasesbetween the said combustionand receivingto' be heated to a certaindegree by radiation from said muiiie-plate and by direct contact withthe hot gases.

10. In a leer of the character described a 'conveyer-seal consisting ofa fixed lower section closely fitted to the conveyer parts, and a 'closefitting. fiangedA upper section adapted to; ride upon the-conveyer.

11. In a leer a feeding chute comprising a fixed and inc'losed lowersection, an up'- wardly swinging'upper section, an extension ofthe'bottomA of the upper section between the sides of and replacing aportion of the chambers anda cross-conveyer in a position bottom of thelower section and 'a timing valve at the top of the said lower section.

l2. In a leer a feeding mechanism comprising a chute having a bottomsection fixed `and a top section hinged thereto, a pair of oscillatingtiming-wings geared to an arm of a rocker-shaft, a roller-,on an arm ofsaid j rocker-shaft adapted to engage the wearing surface of a cam andmeans to rotate said' cam in synchronism with the rate of production Aofthe pieces of ware.

, ,13. In a leer a feeding me'chanismlcom-A prisiiig a' chute,timing-wings within said chute and means .for oscillating the said wingsthrough a positive drive on their'out- 'ward or retarding stroke andthrough a spring tension drive on their inward or feeding in stroke.

.14. In a leer a feeding mechanism comprising a chute, a Valve in saidchute for retarding the passage of articles a given interval'of time andadvancing them at regular intervals of'tiine and means for actuatingvsaid valve with apositive drive in the Ietarding i means for depositingthe ware in positionk upon the cross-conyeyer, a pusher-bar and meansfor actuating itat certain intervals of time, a main-conveyer, amultiple-chute from the cross-conveyer to the main-conveyer and meansfor depositing the Ware in position on the main-conveyer.

16. In a leer feeding mechanism the combination of a chute, a timingvalve in the chute, a cross-conveyer, a deflector and a stop at the endof the chute and above the cross-conveyer, a pusher-bar moving acrossthe conveyer, a multiple chute receiving articles pushed from theconveyer, means for actuating the said timing valve and crossconveyer atintervals of time corresponding to the rate of production of the wareand means for actuating the Said pusher-bar at intervals correspondingto selected multiples of the rate of production of the ware.

17. In a leer feeding mechanism the combination of a drive shaft-gearedto a motor, a cam and a combined gear and crank-disk on the 'driveshaft, a driven shaft having on one end a crank-disk and on the otherend av gear, a hollow slide, a solid slide within the hollow slide, aconnecting rod between the solid slide and the crank-disk on the drivenshaft, a latch having an outward extending arm and a downward extendingarm terminating in a hook adapted to engage a pin in the solid slide, apin in the hollow slide engaging a driving arm on a rocker-shaft,segmental gears on the rocker-shaft, rack-rods meshing into saidsegmental gears and attached to a pusherbar, a cross-conveyer headshaft, a series of ratchets and a pawl-carrier with pawls on saidconveyer shaft, a'timing-disk on said conveyer shaft adapted to control"the ac- .tion of the said outward extending arm on the latch and aconnecting-rod between the pawl-carrier'and the crank-disk on the driveshaft. v

18. In a leer feeding mechanism the combination of a chute for conveyingware by gravity to a cross-coni-'eyer of a pusher-bar Ahaving notches orteeth in the edge, which comes in contact with the ware, a main-conveyerand -means for actuating the said pusher-bar and conveyers,substantially as described.

19. In a'leer feeding mechanism a pusher-v bar and means for actuatingit controlled by a timing-device comprising a drive shaft geared to amotor, a driven shaft geared to fbination of a gravity conveyer entirelywithinthe heated receivgravity.

the drive shaft, a crank-disk on the drivenv shaft, a hollow slide witha periodical re-A ciprocating motion, a drive arm on a rockershaftactuated by a stud on the hollow slide,

a solid slide with a continuous reciprocating motion withinthe hollowslide, a connectingrod between the crank-disk and the solid slide, alatch in the hollow slide adapts ed tol engage ay pin in the solid slideat fixed intervals of time, a timing-disk with a notch adapted toreceive an arm of the latch once in each revolution, a dog pivoted onthe timing-disk, and means for drivingthe timing-disk at a speed whichis at a givenratio to that of the crank-disk. y

20. In a leer feeding mechanism a cross conveyer, a cross-conveyer headshaft, one or more ratchets keyed to the head shaft, a pawlcarrierpivoted on the head shaft, one or more pawls in the carrier withall but one thrown out of engagement, a crankdisk on a drive shaft, aconnecting-rod between the crank-disk and the pawl carrier, the arc oftravel of the carrier being such that the cross-conveyer is advanced adistance equal t'othe largest diameter of each piece of ware, plus apredetermined clearance, at each revolution of the crank-disk.

21. In a leer feeding mechanism the come ing chamber of the leer, apusher-bar disposed above the cross-conveyer, said pusherbar having atoothed pushing edge, the

eding chute, a crossspacing of the teeth being in relation to thespacing of the ware on the cross-conveyer, means' for actuating thepusher-bar giving it a quick forward and return stroke at certainintervals of time across the cros's-conveyer a multiple chute forcarrying trans- -verse rows of ware from the cross-conveyer to amain-conveyer, the said chutes conveyers and pusher-bar being adapted toprevent contact between the pieces of ware.

22. In a leer feeding mechanism the combination of a gravity feedingchute, a crosslconveyer within a receiving chamber, a

multiple chute for conveying ware from the cross-conveyer to amain-conveyer, a pusherbar for pushing ware from'the cross-conveyer tothe multiple chute, a cullet or waste material chute at the dischargeend of-saidcross-conveyer adapted Ato receive and dis- -charge at apoint outside of the receiving chamber any ware which may not havebeenpushed off of the cross-conveyer and an automatic door at the lower endof the cullet chute adapted to open by the weight' of the outgoingpieces of ware and to close by Witnesses.'

PHIL S. BENTEL, GoLDIE G. ROBEY.

